*{
    margin: 0;
    padding: 0;
}
body{
    background: url(http://static.zongheng.com/author/v2015/images/loginbg.jpg)no-repeat center top;
}
a{
    text-decoration: none;
}
.header{
    width: 100%;
    height: 70px;
    background: #fff;
    z-index: 9;
    box-shadow: 2px 2.5px 2px #ccc;
.nav{
    width: 1000px;
    margin: 0 auto;
    overflow: hidden;
    .nav-left{
        float: left;
        width: 142px;
        height: 35px;
        margin-top: 18px;
        img{
            width: 100%;
            height: 100%;
        }
        }
    .nav-right{
        float: right;
        padding-top: 33px;
        color: #ddd;
        font-size: 14px;
        a{
            margin: 0 10px;
            color: #333;
        }
        a:nth-last-of-type(1){
            color: #e74c3c;
        }
        :hover{
            color: #1abc9c;
        }
    }
    }
}
.box{
    position: absolute;
    width: 330px;
    height: 320px;
    left: 50%;
    top: 160px;
    background: #fff;
    margin-left: 110px;
    padding: 20px 25px;
    border: 1px solid #e0e0e0;
    box-shadow: 2px 5px 35px #e1d7be;
    span{
        position: absolute;
        top: -51px;
        left: -1px;
        font-size: 14px;
        color: #575757;
    }
    .content{
        h3{
            font-size: 18px;
            font-weight: 100;
            line-height: 80px;
            color: #1abc9c;
            padding: 0 5px;
        }
        p{
            line-height: 30px;
            font-size: 14px;
            color: #333;
            padding: 0 5px;
        }
        a:nth-last-of-type(1){
            display: block;
            width: 330px;
            height: 48px;
            margin-top: 40px;
            background: #1fc8ab;
            color: #fff;
            font-size: 20px;
            line-height: 48px;
            text-align: center;
        }
    }
}
.footer{
    padding-top: 538px;
    text-align: center;
    color: #a8a8a8;
    font-size: 12px;
    line-height: 24px;
    em{
        margin-left: -4px;
        padding-right: 2px;
        font-family: 'Arial','微软雅黑';
    }
}